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Proceedings Paper

Diffraction-limited beams and their applications for ultrasonic imaging and tissue characterization (Invited Paper)
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Paper Abstract

Diffraction-limited beams were first discovered by Durnin in 1987. These beams are pencil- like and have very large depth of field. Recently, we have discovered new families of diffraction-limited beams which contain some of the diffraction-limited beams known previously, such as, the plane wave and Durnin's Bessel beams, in addition to an infinite variety of new beams, such as X waves. In this paper, we generalize the new diffraction- limited beams to n-dimensional space, review the recent development of the diffraction-limited beams, and describe their applications to medical ultrasonic imaging, tissue characterization and nondestructive evaluation of materials. Advantages and disadvantages of these beams are discussed and their possible applications to other wave related fields are addressed.

Paper Details

Date Published: 5 November 1992
PDF: 28 pages
Proc. SPIE 1733, New Developments in Ultrasonic Transducers and Transducer Systems, (5 November 1992); doi: 10.1117/12.130590
Show Author Affiliations
Jian-yu Lu, Mayo Clinic and Foundation (United States)
James F. Greenleaf, Mayo Clinic and Foundation (United States)

Published in SPIE Proceedings Vol. 1733:
New Developments in Ultrasonic Transducers and Transducer Systems
Frederick L. Lizzi, Editor(s)

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